Y37型转向架是在Y35的基础上研制的,从1983年起用于运送带小汽车的旅客的列车上,这种列车的运行速度达140km/h。在转向架结构中采用了摆式支座的横向悬挂,可保证有效地疏解转向架和车体的振动。这可取消摇头振动的液压减振器,且因此不会造成比目前车轮踏面接触有更大的复原刚性。与Y35型转向架相比,新型转向架的特点是轴重更大(18t取代16t),最大速度更高(160km/h取代140km/h)。在高速情况下,采用单个作用于车轮上的合成闸瓦制动是不够的,因为车轮踏面制动热负荷已超出限度,所以采用了盘形制动。在法国铁路上制 The Y37 bogie was developed on the basis of the Y35 and has been used on trains carrying passengers with cars since 1983 and has a speed of 140 km / h. In the bogie structure used pendulum bearing horizontal suspension, can effectively ease the bogie and body vibration. This cancels the oscillating hydraulic shock absorber and therefore does not result in greater return stiffness than the current wheel tread contact. Compared with the Y35 bogie, the new bogie features a larger axle weight (18t instead of 16t) and a higher maximum speed (160km / h instead of 140km / h). At high speeds, braking with a single brake shoe acting on a single wheel is not sufficient because of the thermal overload of the wheel tread brake, so disc brake is used. On the French railway system